-1684

Appears in sequences

• Expansion of sinh(sin(x)*x)/2.at n=4A024238
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 131", based on the 5-celled von Neumann neighborhood.at n=25A270224
• Expansion of Product_{k>=1} (1 - x^k/(1 - x)).at n=43A307599
• Determinant of n X n matrix containing the first n^2 composites in increasing order.at n=9A321685
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A384941.at n=61A384944